Function  2Ah  Get Date 
     Returns day of the week, year, month, and date 
entry   AH      2Ah 
return  CX      year    (1980-2099) 
	DH      month   (1-12) 
	DL      day     (1-31) 
	AL      weekday 00h     Sunday 
			01h     Monday 
			02h     Tuesday 
			03h     Wednesday 
			04h     Thursday 
			05h     Friday 
			06h     Saturday 
note 1) Date is adjusted automatically if clock rolls over to the next day, 
	and takes leap years and number of days in each month into account. 
     2) Although DOS cannot set an invalid date, it can read one, such as 
	1/32/80, etc. 
     3) DesQview also accepts CX = 4445h and DX = 5351h, i.e. 'DESQ' as valid 
     4) DOS will accept CH=0 (midnight) as a valid time, but if a file's time 
	is set to exactly midnight the time will not be displayed by the DIR 
	command.